126 lines
4.5 KiB
C
126 lines
4.5 KiB
C
/* $NetBSD: osf1_prot.c,v 1.8 2005/02/26 23:10:21 perry Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Christopher G. Demetriou
|
|
* for the NetBSD Project.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Chris G. Demetriou
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: osf1_prot.c,v 1.8 2005/02/26 23:10:21 perry Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/sa.h>
|
|
#include <sys/syscallargs.h>
|
|
|
|
#include <compat/osf1/osf1.h>
|
|
#include <compat/osf1/osf1_syscallargs.h>
|
|
#include <compat/osf1/osf1_cvt.h>
|
|
|
|
/*
|
|
* OSF/1 defines _POSIX_SAVED_IDS, which means that our normal
|
|
* setgid() won't work.
|
|
*
|
|
* If you change "uid" to "gid" in the discussion, below, about
|
|
* setuid(), you'll get a correct description of setgid().
|
|
*/
|
|
int
|
|
osf1_sys_setgid(l, v, retval)
|
|
struct lwp *l;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_setgid_args *uap = v;
|
|
gid_t gid = SCARG(uap, gid);
|
|
int error;
|
|
|
|
error = do_setresgid(l, gid, gid, gid, 0);
|
|
if (error != 0)
|
|
error = do_setresgid(l, -1, gid, -1, ID_E_EQ_R | ID_E_EQ_S );
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* OSF/1 defines _POSIX_SAVED_IDS, which means that our normal
|
|
* setuid() won't work.
|
|
*
|
|
* Instead, by P1003.1b-1993, setuid() is supposed to work like:
|
|
* If the process has appropriate [super-user] privileges, the
|
|
* setuid() function sets the real user ID, effective user
|
|
* ID, and the saved set-user-ID to uid.
|
|
* If the process does not have appropriate privileges, but uid
|
|
* is equal to the real user ID or the saved set-user-ID, the
|
|
* setuid() function sets the effective user ID to uid; the
|
|
* real user ID and saved set-user-ID remain unchanged by
|
|
* this function call.
|
|
*/
|
|
int
|
|
osf1_sys_setuid(l, v, retval)
|
|
struct lwp *l;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_setuid_args *uap = v;
|
|
uid_t uid = SCARG(uap, uid);
|
|
int error;
|
|
|
|
error = do_setresuid(l, uid, uid, uid, 0);
|
|
if (error != 0)
|
|
error = do_setresuid(l, -1, uid, -1, ID_E_EQ_R | ID_E_EQ_S );
|
|
return error;
|
|
}
|